im looping through an array setting three variables each time (one of the variables gives me the position in the array and is incremented each loop)
im trying to then set the variables to that position in the array without much luck. any ideas?
anArray=`$VAR1+$VAR2+"("$pos")"` (1 Reply)
Hi,
I have one file in this format
20 value1
33 value2
56 value3
I have another file in this format:
34,30-SEP-09,57,100237775,33614510126,2,34
34,30-SEP-09,57,100237775,33620766654,2,34
34,30-SEP-09,108,100237775,33628458122,2,34
34,30-SEP-09,130,100237775,33635266741,2,254... (6 Replies)
Hi
I want to write a script which store all the parameters passed to the script into an array.
Once it is stored I want scan through the array and and delete those files for last month present inside the directory. The files in directory is appneded with YYYY_MM_DD.
I want to know how can I... (3 Replies)
I have an array and two variables as below,
I need to check if $datevar is present in $filename.
If so, i need to replace $filename with the values in the array.
I need the output inside an ARRAY
How can this be done.
Any help will be appreciated. Thanks in advance. (2 Replies)
Hi everybody
I wanna store some values that r in a .txt file in some arrays
for example I have:
32782 28
32783 02
32784 01
32785 29
32786 25
32787 25
32788 00
32789 25
32790 02
32791 29
32792 23
32793 01
32794 28
and I need to save the first... (4 Replies)
Hi experts , im new to Unix,AWK ,and im just not able to get this right.
I need to match for some patterns if it matches I need to print the next few words to it.. I have only three such conditions to match… But I need to print only those words that comes after satisfying the first condition..... (2 Replies)
Im using the command below , but thats not the output that i want. it only prints the odd and even numbers.
awk '{if(NR%2){print $0 > "1"}else{print $0 > "2"}}'
Im hoping for something like this
file1:
Text hi this is just a test
text1 text2 text3 text4 text5 text6
Text hi... (2 Replies)
Hello Experts , require help . See below output:
File inputs
------------------------------------------
Server Host = mike
id rl images allocated last updated density
vimages expiration last read <------- STATUS ------->... (4 Replies)
Discussion started by: tigerhills
4 Replies
LEARN ABOUT LINUX
erl_format
erl_format(3erl) C Library Functions erl_format(3erl)NAME
erl_format - Create and Match Erlang Terms
DESCRIPTION
This module contains two routines - one general function for creating Erlang terms and one for pattern matching Erlang terms.
EXPORTS
ETERM * erl_format(FormatStr, ... )
Types char *FormatStr;
This is a general function for creating Erlang terms using a format specifier and a corresponding set of arguments, much in the way
printf() works.
FormatStr is a format specification string. The set of valid format specifiers is as follows:
* ~i - Integer
* ~f - Floating point
* ~a - Atom
* ~s - String
* ~w - Arbitrary Erlang term
For each format specifier that appears in FormatStr , there must be a corresponding argument following FormatStr . An Erlang term is
built according to the FormatStr with values and Erlang terms substituted from the corresponding arguments and according to the
individual format specifiers. For example:
erl_format("[{name,~a},{age,~i},{data,~w}]",
"madonna",
21,
erl_format("[{adr,~s,~i}]","E-street",42));
This will create an (ETERM *) structure corresponding to the Erlang term: [{name,madonna},{age,21},{data,[{adr,"E-street",42}]}]
The function returns an Erlang term, or NULL if FormatStr does not describe a valid Erlang term.
int erl_match(Pattern, Term)
Types ETERM *Pattern,*Term;
This function is used to perform pattern matching similar to that done in Erlang. Refer to an Erlang manual for matching rules and
more examples.
Pattern is an Erlang term, possibly containing unbound variables.
Term is an Erlang term that we wish to match against Pattern .
Term and Pattern are compared, and any unbound variables in Pattern are bound to corresponding values in Term .
If Term and Pattern can be matched, the function returns a non-zero value and binds any unbound variables in Pattern . If Term Pat-
tern do not match, the function returns 0. For example:
ETERM *term, *pattern, *pattern2;
term1 = erl_format("{14,21}");
term2 = erl_format("{19,19}");
pattern1 = erl_format("{A,B}");
pattern2 = erl_format("{F,F}");
if (erl_match(pattern1, term1)) {
/* match succeeds:
* A gets bound to 14,
* B gets bound to 21
*/
...
}
if (erl_match(pattern2, term1)) {
/* match fails because F cannot be
* bound to two separate values, 14 and 21
*/
...
}
if (erl_match(pattern2, term2)) {
/* match succeeds and F gets bound to 19 */
...
}
erl_var_content() can be used to retrieve the content of any variables bound as a result of a call to erl_match() .
Ericsson AB erl_interface 3.7.3 erl_format(3erl)